
    <nz-steps [nzCurrent]="current">
      <nz-step nzTitle="Finished"></nz-step>
      <nz-step nzTitle="In Progress"></nz-step>
      <nz-step nzTitle="Waiting"></nz-step>
    </nz-steps>

    <div class="steps-content">{{ index }}</div>
    <div class="steps-action">
      <button nz-button nzType="default" (click)="pre()" *ngIf="current > 0">
        <span>Previous</span>
      </button>
      <button nz-button nzType="default" (click)="next()" *ngIf="current < 2">
        <span>Next</span>
      </button>
      <button nz-button nzType="primary" (click)="done()" *ngIf="current === 2">
        <span>Done</span>
      </button>
    </div>
  